Clean Water Act discharge permit · NPDES MO0025275
PORTAGEVILLE WWTP, Portageville, MO: NPDES MO0025275 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 25Pollutants under a numeric limit
- 10Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
PORTAGEVILLE WWTP, held by City of Portageville, holds NPDES permit MO0025275, which discharges to Portage Open Bay. EPA’s file records it issued February 9, 2021 and expiring December 31, 2025.
PORTAGEVILLE WWTP, Portageville, Missouri: Individual permit MO0025275, held by City of Portageville; Publicly owned treatment works; Effective; issued February 9, 2021, term to December 31, 2025; discharges to Portage Open Bay.
- BOD, 5-day, 20 deg. C: 3 limits, 50 violations of any kind, 46 effluent exceedances, latest July 31, 2026, largest 352% over the limit.
- Nitrogen, ammonia total [as N]: 18 limits, 37 violations of any kind, 37 effluent exceedances, latest July 31, 2026, largest 1,492% over the limit.
- E. coli: 2 limits, 34 violations of any kind, 28 effluent exceedances, latest July 31, 2026, largest 99,999% over the limit.
- Solids, total suspended: 3 limits, 21 violations of any kind, 16 effluent exceedances, latest March 31, 2025, largest 300% over the limit.
- Copper, total recoverable: 2 limits, 6 violations of any kind, 6 effluent exceedances, latest September 30, 2024, largest 176% over the limit.
- Solids, suspended percent removal: 1 limit, 6 violations of any kind, 6 effluent exceedances, latest March 31, 2025, largest 173% over the limit.
- BOD, 5-day, percent removal: 1 limit, 4 violations of any kind, 4 effluent exceedances, latest June 30, 2025, largest 207% over the limit.
- pH: 2 limits, 5 violations of any kind, 3 effluent exceedances, latest July 31, 2026.
- Cyanide, free [amenable to chlorination]: 2 limits, 3 violations of any kind, 3 effluent exceedances, latest December 31, 2020, largest 22% over the limit.
- Nickel, total recoverable: 2 limits, 1 violation of any kind, 1 effluent exceedance, latest September 30, 2024, largest 23% over the limit.
- Oxygen, dissolved [DO]: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- Hardness, total [as CaCO3]: 2 limits, 2 violations of any kind, 0 effluent exceedances.
- Toxicity [acute], Ceriodaphnia dubia: 2 limits, 1 violation of any kind, 0 effluent exceedances.
- Toxicity [acute], Pimephales promelas [Fathead Minnow]: 2 limits, 1 violation of any kind, 0 effluent exceedances.
- Nitrogen, Kjeldahl, total [as N]: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- Nitrite + Nitrate total [as N]: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- Phosphorus, total [as P]: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- Oil and grease [soxhlet extr.] tot.: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Iron, total recoverable: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Silver total recoverable: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Zinc, total recoverable: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Cadmium, total recoverable: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Lead, total recoverable: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Chromium, hexavalent dissolved [as Cr]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Chromium, trivalent total recoverable: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Flow, in conduit or thru treatment plant: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- December 16, 2025: Effluent Violations - Numeric effluent violation (ST6).
- December 10, 2025: Effluent Violations - Numeric effluent violation (ST6).
- October 2, 2025: Effluent Violations - Numeric effluent violation (ST6).
- March 31, 2025: Effluent Violations - Numeric effluent violation (ST6).
- December 30, 2024: Effluent Violations - Numeric effluent violation (ST6).
- June 28, 2024: Effluent Violations - Numeric effluent violation (ST6).
- May 7, 2024: Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) (ST6).
- May 7, 2024: Reporting Violations - Improper/ Incorrect Reporting (ST6).
- May 7, 2024: Effluent Violations - Numeric effluent violation (ST6).
- March 29, 2024: Effluent Violations - Numeric effluent violation (ST6).
- January 26, 2024: Effluent Violations - Numeric effluent violation (ST6).
- October 9, 2020: Effluent Violations - Numeric effluent violation (ST6).
- November 13, 2019: Permit Violations - Violation Specified in Comment (ST6).
Missouri holds 756 Publicly owned treatment works coverages of this permit type in EPA’s file; 673 were issued before MO0025275.
Coverages issued nearest MO0025275
- December 23, 2020: JCPSD, GOLDEN ACRES WWTF, House Springs, MO0139556, held by Jefferson County Public Sewer District
- January 22, 2021: ST. JAMES WWTP, St. James, MO0093564, held by City of St. James
- February 1, 2021: ST CLAIR WWTF, St. Clair, MO0099465, held by City of St Clair
- February 8, 2021: BELLE WWTF, Belle, MO0048101, held by City of Belle
- February 8, 2021: MOZINGO LAKE RECREATION AREA, Maryville, MO0129194, held by City of Maryville
- February 9, 2021: IBERIA WWTF, Iberia, MO0101273, held by City of Iberia
- February 26, 2021: WESTPHALIA WWTP, Westphalia, MO0127884, held by City of Westphalia
- March 1, 2021: MAWC, GARDEN CITY WWTF, Garden City, MO0046647, held by MISSOURI-AMERICAN WATER COMPANY
- March 1, 2021: ROCKY MOUNT SEWER DISTRICT WWTP, Rocky Mount, MO0136719, held by Rocky Mount Sewer District
- March 17, 2021: SEYMOUR WWTF, Seymour, MO0022985, held by City of Seymour
PORTAGEVILLE WWTP among its neighbors
EPA’s permit file holds 9 discharge permits in the Portage Open Bay subwatershed (HUC 080202040608), MO0025275 among them. Its county holds 64, 3 of them major permits; MO0025275 is a minor permit.
Other permits in the Portage Open Bay subwatershed (HUC 080202040608)
- AECI BORROW/WASTE LANDFILL/LEACHATE PD, Portageville: MORA21672, minor permit, permit term to February 7, 2027
- DELTA CONCRETE - MARSTON PLANT, Marston: MOG490686, minor permit, discharging to Old Chan. Little R., permit term to October 5, 2011
- HAYS AUTO SALVAGE, Portageville: MOR60A344, minor permit, discharging to Tributary to Portage Open Bay, permit term to December 11, 2023
- PILOT TRAVEL CENTER NO. 301, Marston: MOG140043, minor permit, discharging to 100K Extent-Remaining Streams, permit term to June 30, 2024
- SEMO OPERATING CO., Marston: MOG491270, minor permit, discharging to Tributary to Portage Open Bay, permit term to April 30, 2022
- SRG GLOBAL - PORTAGEVILLE, Portageville: MO0001180, major permit, discharging to Tributary to Portage Open Bay, permit term to December 31, 2020
- SRG GLOBAL - PORTAGEVILLE, Portageville: MOR203530, minor permit, discharging to Tributary to Portage Open Bay, permit term to August 31, 2024
- ST. JUDE INDUSTRIAL PARK DWTP, Marston: MO0098418, minor permit, discharging to Tributary to Portage Open Bay, permit term to December 31, 2020
Identity
| Facility as filed | PORTAGEVILLE WWTP |
|---|---|
| Permittee as filed | City of Portageville |
| NPDES ID | MO0025275 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | February 9, 2021 |
| Expiration date | December 31, 2025 |
| Address | Portageville, MO 63873 |
| Receiving water | Portage Open Bay |
| Subwatershed | Portage Open Bay (HUC 080202040608) |
| Program components on file | Biosolids, POTW, Pretreatment |
| SIC | 4952 – Sewerage Systems |
Effluent limits and exceedances
- 26Pollutants on file
- 25Under a numeric limit
- 14With a violation of any kind
- 10With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | 3 | 50 | 46 | July 31, 2026 | 352% over the limit |
| Nitrogen, ammonia total [as N] | 18 | 37 | 37 | July 31, 2026 | 1,492% over the limit |
| E. coli | 2 | 34 | 28 | July 31, 2026 | 99,999% over the limit |
| Solids, total suspended | 3 | 21 | 16 | March 31, 2025 | 300% over the limit |
| Copper, total recoverable | 2 | 6 | 6 | September 30, 2024 | 176% over the limit |
| Solids, suspended percent removal | 1 | 6 | 6 | March 31, 2025 | 173% over the limit |
| BOD, 5-day, percent removal | 1 | 4 | 4 | June 30, 2025 | 207% over the limit |
| pH | 2 | 5 | 3 | July 31, 2026 | |
| Cyanide, free [amenable to chlorination] | 2 | 3 | 3 | December 31, 2020 | 22% over the limit |
| Nickel, total recoverable | 2 | 1 | 1 | September 30, 2024 | 23% over the limit |
| Oxygen, dissolved [DO] | 0 | 6 | 0 | ||
| Hardness, total [as CaCO3] | 2 | 2 | 0 | ||
| Toxicity [acute], Ceriodaphnia dubia | 2 | 1 | 0 | ||
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | 2 | 1 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 4 | 0 | 0 | ||
| Nitrite + Nitrate total [as N] | 4 | 0 | 0 | ||
| Phosphorus, total [as P] | 4 | 0 | 0 | ||
| Oil and grease [soxhlet extr.] tot. | 2 | 0 | 0 | ||
| Iron, total recoverable | 2 | 0 | 0 | ||
| Silver total recoverable | 2 | 0 | 0 | ||
| Zinc, total recoverable | 2 | 0 | 0 | ||
| Cadmium, total recoverable | 2 | 0 | 0 | ||
| Lead, total recoverable | 2 | 0 | 0 | ||
| Chromium, hexavalent dissolved [as Cr] | 2 | 0 | 0 | ||
| Chromium, trivalent total recoverable | 2 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 0 | 0 |
Inspections, violations and enforcement
- 13Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| December 16, 2025 | Effluent Violations - Numeric effluent violation | ST6 |
| December 10, 2025 | Effluent Violations - Numeric effluent violation | ST6 |
| October 2, 2025 | Effluent Violations - Numeric effluent violation | ST6 |
| March 31, 2025 | Effluent Violations - Numeric effluent violation | ST6 |
| December 30, 2024 | Effluent Violations - Numeric effluent violation | ST6 |
| June 28, 2024 | Effluent Violations - Numeric effluent violation | ST6 |
| May 7, 2024 | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | ST6 |
| May 7, 2024 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| May 7, 2024 | Effluent Violations - Numeric effluent violation | ST6 |
| March 29, 2024 | Effluent Violations - Numeric effluent violation | ST6 |
| January 26, 2024 | Effluent Violations - Numeric effluent violation | ST6 |
| October 9, 2020 | Effluent Violations - Numeric effluent violation | ST6 |
| November 13, 2019 | Permit Violations - Violation Specified in Comment | ST6 |
Inspections
EPA’s inspection file holds no inspection for NPDES MO0025275.
Formal enforcement and penalties
0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.
Informal enforcement
EPA’s informal enforcement file holds no action for NPDES MO0025275.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.